CN220010019U - Suspension assembly and tricycle - Google Patents

Abstract

The utility model belongs to the technical field of vehicles, and discloses a suspension assembly and a tricycle. The suspension assembly comprises a side-rolling limiting assembly, two groups of suspension assemblies and two wheel brackets, wherein the two groups of suspension assemblies are symmetrically arranged on the left side and the right side of the frame, each suspension assembly comprises an upper cantilever and a lower cantilever, each side-rolling limiting assembly comprises a first sliding rod, a second sliding rod, a first sleeve which is in sliding connection with the first sliding rod and a second sleeve which is in sliding connection with the second sliding rod, the first sleeve is vertically connected with the second sleeve, the first sliding rod and the first sleeve are respectively and rotatably connected with the two upper cantilevers, the second sliding rod is rotatably connected with the frame and is provided with two limiting blocks which are symmetrically arranged along the left and right directions of the frame at intervals, and the two limiting blocks can be in butt joint or separation with the frame. The side-tipping angle of the vehicle body is limited in a safety range through the side-tipping limiting assembly, side-tipping of the tricycle is avoided, and driving safety of the tricycle during steering is guaranteed.

Description

Suspension assembly and tricycle

Technical Field

The utility model relates to the technical field of vehicles, in particular to a suspension assembly and a tricycle.

Background

With the development of economy and the progress of society, various types of vehicles are developed toward individualization and comfort. The tricycle is used as a portable transportation means, has small size, certain cargo carrying capacity and convenient use, and is widely concerned at home and abroad. However, due to structural limitation of the traditional tricycle in a curve, the vehicle cannot swing freely, bending action cannot be easily achieved in the turning process, and people who are used to riding the two-wheeled vehicle feel uncomfortable easily.

The Chinese patent document with the publication number of CN206407056U discloses a front suspension deflection structure for an inverted tricycle, wherein four rocker arm mounting holes which are not coaxial are formed in a connecting frame of the structure, a right upper arm, a right lower arm, a left upper arm and a left lower arm are all mounted on the connecting frame through connecting shafts which are internally arranged, and the right upper arm, the right lower arm, the left upper arm and the left lower arm are respectively mounted on an upper right rotary hinge joint, a lower right rotary hinge joint, an upper left rotary hinge joint and a lower left rotary hinge joint through connecting shafts; the upper and lower articulated mounting holes of the steering knuckle form a certain inclination angle with the ground, so that the front suspension has the characteristic of an automobile kingpin, the stability of the motion of the four-wheel automobile and the running flexibility of the two-wheel automobile are considered, the mechanism automatically tilts in the turning process, the bending running action is easily realized, and the steering is stable in the riding process.

However, the above solution still has the following technical problems: when the wheels of the inverted tricycle turn, the wheels on the other side are separated from the ground due to overlarge transverse inertia, and safety accidents are easily caused by side turning.

Disclosure of Invention

The utility model aims to provide a suspension assembly and a tricycle, which are used for solving the technical problem that when the tricycle turns, wheels are separated from the ground and rollover occurs.

To achieve the purpose, the utility model adopts the following technical scheme:

in one aspect, the utility model provides a suspension assembly, the suspension assembly includes a roll limiting component, two groups of suspension components and two wheel brackets, the two groups of suspension components are symmetrically arranged on the left side and the right side of a frame, the suspension components include an upper cantilever and a lower cantilever, one end of the upper cantilever and one end of the lower cantilever are rotationally connected with the frame, the other end of the upper cantilever and the other end of the lower cantilever are in spherical hinge with the wheel brackets, the wheel brackets are used for mounting wheels, the roll limiting component includes a first sliding rod, a second sliding rod, a first sleeve in sliding connection with the first sliding rod and a second sleeve in sliding connection with the second sliding rod, the first sliding rod and the first sleeve are respectively and rotationally connected with the two upper cantilevers, the second sliding rod and the frame are rotationally connected and provided with two limiting blocks which are symmetrically arranged along the left and right directions of the frame, and the two limiting blocks can be in abutting connection with or separation with the frame.

Preferably, the suspension assembly further comprises a shock absorber, the shock absorber comprises a cylinder body and a piston rod arranged on the cylinder body in a sliding mode, and the cylinder body and the piston rod are respectively connected with the two upper cantilevers in a rotating mode.

Preferably, the suspension assembly further comprises a spring, one end of the spring is fixed on the piston rod, and the other end of the spring is fixed on the cylinder body.

Preferably, the shock absorber is located directly above the roll-limiting assembly.

Preferably, the suspension assembly further comprises steering tie rods, steering linkage seats and bearings, one ends of the two steering tie rods are respectively hinged with the two wheel brackets in a ball mode, the other ends of the two steering tie rods are respectively hinged with the steering linkage seats in a ball mode, and the steering linkage seats are connected with the frame in a rotating mode through the bearings.

Preferably, the suspension assembly further comprises a steering shaft, a pull arm and a driving rod, wherein the steering shaft is fixedly connected with the pull arm, and two ends of the driving rod are respectively hinged with the pull arm and the steering linkage seat in a ball mode.

Preferably, the frame is also fixedly provided with a limiting plate, a chute is formed in the limiting plate, a limiting column is fixedly arranged on the steering linkage seat, and the limiting column is slidably positioned in the chute.

Preferably, the upper cantilever comprises a first support arm and a second support arm which are connected in a V shape, the joint of the first support arm and the second support arm is connected with a ball seat, the wheel support is provided with a ball head, and the ball seat is in ball joint with the ball head; one end of the first support arm far away from the wheel bracket and one end of the second support arm far away from the wheel bracket are both rotationally connected with the frame.

Preferably, a connecting seat is convexly arranged at a connecting position between the first support arm and the second support arm, wherein one connecting seat of the upper cantilever is rotationally connected with the first sleeve, and the other connecting seat of the upper cantilever is rotationally connected with the first sliding rod.

In another aspect, the present utility model provides a tricycle, which includes a frame, a first wheel, two second wheels, and a suspension assembly according to any one of the above aspects, wherein the first wheel is rotatably mounted on the frame and located at one end of the tricycle in a front-rear direction, and the two second wheels are respectively mounted on the two suspension assemblies and located at the other ends of the tricycle in the front-rear direction.

The beneficial effects are that:

the utility model provides a suspension assembly and a tricycle, the suspension assembly comprises a side-rolling limit assembly, two groups of suspension assemblies and two wheel brackets, the two groups of suspension assemblies are symmetrically arranged at the left side and the right side of a frame, each suspension assembly comprises an upper cantilever and a lower cantilever, one end of each upper cantilever and one end of each lower cantilever are rotationally connected with the frame, the other end of each upper cantilever and the other end of each lower cantilever are in spherical hinge with the wheel bracket, the wheel brackets are used for mounting wheels, each side-rolling limit assembly comprises a first sliding rod, a second sliding rod, a first sleeve in sliding connection with the first sliding rod and a second sleeve in sliding connection with the second sliding rod, the first sliding rod and the first sleeve are respectively and rotationally connected with the two upper cantilevers, the second sliding rod is rotationally connected with the frame and provided with two limiting blocks which are symmetrically arranged along the left direction and the right direction of the frame, and the two limiting blocks can be in abutting connection or separation with the frame. Through the limit fit of the limit block and the frame, the overlarge side-tipping angle of the vehicle body during steering is effectively avoided; the side-tipping angle of the vehicle body is limited in a safety range through the side-tipping limiting assembly, side-tipping of the tricycle is avoided, and driving safety of the tricycle during steering is guaranteed.

Drawings

FIG. 1 is a schematic illustration of a suspension assembly provided by the present utility model;

FIG. 2 is a schematic view of the assembled roll-limiting assembly and frame of the present utility model;

FIG. 3 is a first isometric view of the roll-limiting assembly, suspension assembly and frame provided by the present utility model after assembly;

FIG. 4 is a second isometric view of the roll-limiting assembly, suspension assembly and frame provided by the present utility model after assembly;

FIG. 5 is a schematic view of a portion of a suspension assembly according to the present utility model;

FIG. 6 is a schematic view of the assembly of the steering linkage, steering linkage mount, bearing and drive rod provided by the present utility model;

fig. 7 is a schematic structural view of an upper cantilever provided by the present utility model.

In the figure:

1. a roll limit assembly; 11. a first slide bar; 12. a second slide bar; 13. a first sleeve; 14. a second sleeve; 15. a limiting block;

2. a suspension assembly; 21. an upper cantilever; 211. a first arm; 212. a second arm; 213. a ball seat; 214. a connecting seat; 22. a lower cantilever; 23. a damper; 231. a cylinder; 232. a piston rod; 24. a spring;

3. a wheel support; 31. ball head;

4. a frame; 41. a limiting plate;

5. a steering tie rod;

6. a steering linkage seat; 61. a bearing; 62. a limit column;

7. a steering shaft;

8. pulling an arm;

9. and a driving rod.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

The utility model provides a tricycle, which comprises a frame 4, first wheels, two second wheels and a suspension assembly, wherein the first wheels are rotatably arranged on the frame 4 and positioned at one end of the tricycle in the front-rear direction, the two second wheels are respectively arranged on the two suspension assemblies and positioned at the other end of the tricycle in the front-rear direction, and the tricycle is particularly suitable for an inverted tricycle with front wheels being left and right wheels respectively and having a steering function and rear wheels being single wheels and having a driving function. Through setting up suspension assembly can effectively solve current tricycle and lead to the technical problem that turns on one's side owing to lateral inertia is too big causes the opposite side wheel to leave the ground and then lead to turning on one's side in the high-speed turn, has effectively guaranteed the safety of traveling of tricycle.

Referring to fig. 1 to 4, the suspension assembly includes a roll limiting assembly 1, two sets of suspension assemblies 2 and two wheel brackets 3, the two sets of suspension assemblies 2 are symmetrically disposed on the left and right sides of a frame 4, each suspension assembly 2 includes an upper suspension arm 21 and a lower suspension arm 22, one end of the upper suspension arm 21 and one end of the lower suspension arm 22 are rotationally connected with the frame 4, the other end of the upper suspension arm 21 and the other end of the lower suspension arm 22 are ball hinged with the wheel brackets 3, the wheel brackets 3 are used for mounting wheels, the roll limiting assembly 1 includes a first sliding rod 11, a second sliding rod 12, a first sleeve 13 slidably connected with the first sliding rod 11, and a second sleeve 14 slidably connected with the second sliding rod 12, the first sleeve 13 is vertically connected with the second sleeve 14, the first sliding rod 11 and the first sleeve 13 are rotationally connected with the two upper suspension arms 21, the second sliding rod 12 is rotationally connected with the frame 4 and provided with two limiting blocks 15 symmetrically disposed along the left and right directions of the frame 4, and the two limiting blocks 15 can be abutted or separated from the frame 4. The side-tipping angle of the vehicle body is limited in a safety range through the side-tipping limiting assembly 1, so that side tipping of the tricycle is effectively avoided, and driving safety of the tricycle during steering is guaranteed.

Specifically, the first slide rod 11 and the first sleeve 13 are relatively axially slidable, the second slide rod 12 and the second sleeve 14 are relatively axially slidable, the roll limit assembly 1 has a normal running state and two roll states, which are inclined to the left side of the vehicle and inclined to the right side of the vehicle, respectively, and both the stoppers 15 are separated from the frame 4 when in the normal running state; when being in the inclination, one of them stopper 15 and frame 4 butt, another stopper 15 and frame 4 separation to the focus of tricycle can not lead to the tricycle to turn on one's side this moment, and automobile body inclination is too big when can avoiding turning to so, and then makes the tricycle can not appear the condition that opposite side wheel left the ground at high-speed turning in-process, promotes the security performance of tricycle.

In this embodiment, decoupling is carried out between the side-tipping limiting component 1 and the suspension component 2, so that the motion between the side-tipping limiting component 1 and the suspension component 2 can not interfere, and the travel of the suspension is independent of the side-tipping limiting component 1, so that the tricycle is ensured to have a large suspension travel, and the side-tipping angle of the tricycle body can be effectively limited, and the stability of the tricycle in steering is effectively ensured.

Specifically, the frame 4 is fixedly provided with a limiting support, the limiting support is rotationally connected with the second sliding rod 12 through a pin shaft, two baffles are arranged on the limiting support along the left side and the right side of the frame 4, and the two limiting blocks 15 can be abutted or separated from the baffles on the same side, so that the angle limiting of the contralateral tilting limiting assembly 1 is realized.

Further, the suspension assembly 2 in this embodiment is an independent cantilever, and the wheels on each side are all connected with the frame 4 through the independent cantilever, so that the left and right wheels can not interfere with each other, the inclination and vibration of the frame 4 are effectively reduced, and the stability and comfort of the tricycle are improved.

Referring to fig. 1, 3, 4 and 5, the suspension assembly further includes a shock absorber 23, and the shock absorber 23 includes a cylinder 231 and a piston rod 232 slidably disposed in the cylinder 231, and the cylinder 231 and the piston rod 232 are rotatably coupled with the two upper suspensions 21, respectively. Specifically, the cylinder 231 and the piston rod 232 are connected to the two upper cantilevers 21, respectively, through pins. The shock absorber 23 can restrain the impact of the road on the wheels and ensure the running stability of the tricycle. Preferably, the shock absorber 23 is a hydraulic shock absorber, when the wheels are subjected to vibration of the road surface to move, the piston rod 232 in the shock absorber 23 moves along the axial direction of the cylinder body 231, oil in the cylinder body 231 flows between the two chambers through the damping holes, at the moment, friction between the damping hole wall and the oil and internal friction between oil molecules generate damping force, so that vibration energy of the automobile is converted into oil heat energy to be diffused to the outside, and vibration of the road surface to the wheels is effectively buffered.

Further, the suspension assembly further includes a spring 24, one end of the spring 24 is fixed to the piston rod 232, and the other end of the spring 24 is fixed to the cylinder 231. The compression and the extension of the spring 24 can reduce the wheel vibration caused by road surface jolt, and the shock absorber 23 can effectively inhibit the shock jump when the spring 24 bounces through the damping force generated by axial movement, so that the running smoothness of the tricycle is ensured.

Further, the shock absorber 23 is located directly above the roll-limiting assembly 1.

Referring to fig. 1, 5 and 6, the suspension assembly further includes steering tie rods 5, steering linkage seats 6 and bearings 61, one ends of the two steering tie rods 5 are respectively in spherical hinge with the two wheel brackets 3, the other ends of the two steering tie rods 5 are respectively in spherical hinge with the steering linkage seats 6, and the steering linkage seats 6 are rotatably connected with the frame 4 through the bearings 61. Specifically, the bearing 61 includes an inner ring fixedly connected with the frame 4 by bolts and an outer ring fixedly connected with the steering linkage seat 6 by bolts, so that the steering linkage seat 6 is rotatably connected with the frame 4.

Referring to fig. 1 and 6, the suspension assembly further comprises a steering shaft 7, a pull arm 8 and a driving rod 9, wherein the steering shaft 7 is fixedly connected with the pull arm 8, and two ends of the driving rod 9 are respectively in spherical hinge with the pull arm 8 and the steering linkage seat 6. Specifically, the steering shaft 7 and the pull arm 8 are fixedly connected together by welding. When the tricycle turns, the steering shaft 7 drives the pull arm 8 to rotate, and meanwhile the driving rod 9 also moves and drives the steering linkage seat 6 to rotate around the frame 4, so that the steering pull rods 5 on two sides of the frame 4 are driven to move, and the steering of wheels is realized while the frame 4 is kept motionless.

Referring to fig. 1, 5 and 6, the frame 4 is further fixedly provided with a limiting plate 41, a chute is formed in the limiting plate 41, a limiting column 62 is fixedly arranged on the steering linkage seat 6, and the limiting column 62 is slidably located in the chute. The limiting plate 41 is welded and fixed on the frame 4, and through the interaction between the sliding groove of the limiting plate 41 and the limiting column 62, the angle of steering of the wheel can be effectively limited, so that the interference between the wheel and other parts of the tricycle during steering can be avoided, and the rollover of the tricycle due to overlarge rotation angle can be avoided.

Referring to fig. 3, 5 and 7, the upper cantilever 21 includes a first arm 211 and a second arm 212 connected in a V-shape, a ball seat 213 is connected at the connection of the first arm 211 and the second arm 212, a ball head 31 is provided on the wheel bracket 3, and the ball seat 213 is ball-hinged with the ball head 31; the end of the first arm 211 remote from the wheel carrier 3 and the end of the second arm 212 remote from the wheel carrier 3 are both rotatably connected to the frame 4. The first support arm 211 and the second support arm 212 are respectively connected with the frame 4, so that the stability of the connection between the suspension assembly 2 and the frame 4 can be effectively ensured.

Referring to fig. 7, a connection seat 214 is convexly provided at a connection position between the first arm 211 and the second arm 212, wherein the connection seat 214 of one upper cantilever 21 is rotatably connected with the first sleeve 13, and the connection seat 214 of the other upper cantilever 21 is rotatably connected with the first sliding rod 11.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. The suspension assembly is characterized by comprising a side-rolling limiting component (1), two groups of suspension components (2) and two wheel brackets (3), wherein the two groups of suspension components (2) are symmetrically arranged on the left side and the right side of a frame (4), each suspension component (2) comprises an upper cantilever (21) and a lower cantilever (22), one end of each upper cantilever (21) and one end of each lower cantilever (22) are rotationally connected with the frame (4), the other end of each upper cantilever (21) and the other end of each lower cantilever (22) are respectively and spherically hinged with the wheel brackets (3), the wheel brackets (3) are used for installing wheels, each side-rolling limiting component (1) comprises a first sliding rod (11), a second sliding rod (12), a first sleeve (13) which is in sliding connection with the first sliding rod (11) and a second sleeve (14) which is in sliding connection with the second sliding rod (12), the first sleeve (13) is vertically connected with the second sleeve (14), the first sliding rod (11) and the second sleeve (13) are respectively connected with the frame (4) in a rotating direction along with the two sliding rods (4), both limiting blocks (15) can be abutted or separated from the frame (4).

2. Suspension assembly according to claim 1, characterized in that it further comprises a shock absorber (23), said shock absorber (23) comprising a cylinder (231) and a piston rod (232) slidingly arranged to said cylinder (231), said cylinder (231) and said piston rod (232) being respectively in rotational connection with two of said upper booms (21).

3. The suspension assembly according to claim 2, further comprising a spring (24), one end of the spring (24) being fixed to the piston rod (232), the other end of the spring (24) being fixed to the cylinder (231).

4. Suspension assembly according to claim 2, characterized in that the shock absorber (23) is located directly above the roll-limiting component (1).

5. Suspension assembly according to any one of claims 1-4, further comprising a steering tie rod (5), a steering linkage seat (6) and a bearing (61), wherein one end of each of the two steering tie rods (5) is respectively ball-hinged to the two wheel brackets (3), the other end of each of the two steering tie rods (5) is ball-hinged to the steering linkage seat (6), and the steering linkage seat (6) is rotatably connected to the frame (4) through the bearing (61).

6. The suspension assembly according to claim 5, further comprising a steering shaft (7), a pull arm (8) and a driving rod (9), wherein the steering shaft (7) is fixedly connected with the pull arm (8), and two ends of the driving rod (9) are respectively in spherical hinge with the pull arm (8) and the steering linkage seat (6).

7. The suspension assembly according to claim 5, wherein the frame (4) is further fixedly provided with a limiting plate (41), a sliding groove is formed in the limiting plate (41), a limiting column (62) is fixedly arranged on the steering linkage seat (6), and the limiting column (62) is slidably located in the sliding groove.

8. Suspension assembly according to claim 1, wherein the upper suspension arm (21) comprises a first arm (211) and a second arm (212) which are connected in a V-shape, a ball seat (213) is connected to the connection of the first arm (211) and the second arm (212), a ball head (31) is arranged on the wheel support (3), and the ball seat (213) is in ball joint with the ball head (31); one end of the first support arm (211) far away from the wheel bracket (3) and one end of the second support arm (212) far away from the wheel bracket (3) are rotationally connected with the frame (4).

9. Suspension assembly according to claim 8, wherein the connection between the first arm (211) and the second arm (212) is provided with a connection seat (214) in a protruding manner, wherein one of the connection seats (214) of the upper suspension arm (21) is in rotational connection with the first sleeve (13) and the other connection seat (214) of the upper suspension arm (21) is in rotational connection with the first slide rod (11).

10. A tricycle, characterized in that the tricycle comprises a frame (4), a first wheel, two second wheels and the suspension assembly according to any one of claims 1-9, wherein the first wheel is rotatably mounted on the frame (4) and is positioned at one end of the tricycle in the front-rear direction, and the two second wheels are respectively mounted on the two suspension assemblies and are positioned at the other end of the tricycle in the front-rear direction.